Anaheim’s 2010 Urban Water Management Plan (UWMP) was prepared in accordance with the California Urban Water Management Planning Act. This Act requires every urban water supplier providing water for municipal purposes to more than 3,000 customers or supplying more than 3,000 acre-feet of water annually to prepare and adopt, in accordance with prescribed requirements, a UWMP. Each urban water supplier is required to update its plan at least once every five years. Anaheim’s 2010 UWMP was adopted on June 7, 2011.